Preheat oven to 325 F. Line 2 cookie sheets with parchment paper and spray with non stick spray.

Sift flour, mace, nutmeg and salt into a small bowl.

Using the whip attachment of an electric mixer, beat eggs for several minutes until light and frothy. They should form soft peaks.

Add vanilla extract and sugar and mix for 2 minutes until well incorporated.

Using a rubber spatula, fold in 1/3 of the flour until incorporated.

Repeat 2 more times until all of the flour has been incorporated.

With slightly wet hands, take a portion about the size of a small lime and form into a small patty shape (like a hamburger).

Place on the cookie sheets with a little space in between each cookie.

Bake for 25 minutes until the bottom of the cookies are a little golden around the edges.

Leave to cool for a few minutes before removing from the cookie sheet.